A two-dimensional rough surface: Experiments on a pile of rice

2002/05/07 by Christof M. Aegerter, C. M. Aegerter, Ramses Günther +5
Computer Science · Environmental Science · Physics and Astronomy · #Computer Graphics and Visualization Techniques #Data Analysis #FOS: Physical sciences #Plant Water Relations and Carbon Dynamics #Scientific Research and Discoveries #Statistics and Probability (physics.data-an) #physics.data-an

paper · pdf · doi:10.48550/arxiv.physics/0205015

9 pages, 5 figures, proceedings to the international conference on complex systems

arxiv created 2002/05/07 · openalex publication_date 2002/05/07 · arxiv updated 2012/04/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Dynamical roughening of interfaces has received much attention in recent years. However, experiments have been restricted to one dimensional (1d) systems. Moreover, theoretical studies of the two dimensional (2d) case have been highly inconclusive. Here we introduce an experimental 2d system, with which the theories can be tested. As is shown, the surface of a 2d pile of rice shows roughening behaviour in both space and time, with a roughness exponent α_2d = 0.39(3) and a growth exponent β_2d = 0.27(3).

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